如何防止重复发送且同时到达的请求创建多余的资源？ - V2EX
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xi_lin

如何防止重复发送且同时到达的请求创建多余的资源？

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  •   xi_lin Aug 13, 2015 2331 views
    This topic created in 3915 days ago, the information mentioned may be changed or developed.

    比如说创建用户收藏，同时有两个相同的创建请求到达，如何保证只生成一条收藏记录呢？

  • 创建
  • 收藏
  • 请求
    4 replies    2015-08-13 16:17:15 +08:00
    yeyeye
        1
    yeyeye  
       Aug 13, 2015
    创建前检测是否有相同的
    virusdefender
        2
    virusdefender  
       Aug 13, 2015   1
    防重复请求处理的实践与总结

    http://mogu.io/prevent-duplicate-requests-4

    来自蘑菇街的技术博客
    xi_lin
        3
    xi_lin  
    OP
       Aug 13, 2015
    @virusdefender 感觉蘑菇街这个方案还是不够通用，看上去是任何涉及这类防重复的请求都得手工确保？有没有框架层可以统一处理的方案呢？
    xi_lin
        4
    xi_lin  
    OP
       Aug 13, 2015
    @yeyeye 不加锁的话无法保证，两个同时到达的请求在不同的thread和transaction里
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